Display panel of a programmed computer system with a graphical user interface



FIG. 1 is a front view of a display panel of a programmed computer system with a graphical user interface; and,

FIG. 2 is a front view of a portion thereof, on an enlarged scale, for ease of illustration.

The broken line showing a display panel forms no part of the claimed design. The broken lines showing portions of the graphical user interface form no part of the claimed design. 

CLAIM We claim the ornamental design for a display panel of a programmed computer system with a graphical user interface, as shown and described. 